Electroplating apparatus.



J. T. DANIELS. ELEOTBOPLATING APPARATUS. APPLICATION FILED AUG.2'I, 1907.

Patented Feb. 9, 1909.

7/5514 sure; 1 gaffer parts of the retaining not, without prohibitor the perforations. It is also, ,for the said purposes, extremely durable, is readily cut and punched and retains, at all times, under the working conditions maintained, a surface sufficiently smooth to insure the requisite movement during rotation of even the minutest objects under treatment. Moreover, m said material is quite transparent, thus affording, without opening the drum, opportunity tothe operator to inspect, for many purposes and during rotation, the condition of the articles under treatment, and

articularly whether same are tumbling reely or undesirably clogging, an advantage not obtainable by the use of any other material known to me to be obtainable or hitherto used for this purpose, glass being objectionable for obvious reasons. Fur thermore, the celluloid or other like material above stated is, by reason of its inherent qualities, particularly well adapted for combination, for the pur oses specified, with the wooden frame of the rum referred to, the two materials specified, viz: celluloid or the like, and wood, each possessing properties, inclu ding those above referred to, which render their said combination roductive-of advantages which could not lie realized from'a drum composed exclusively of either. one of the said substances. It will be understood that the number, size, of the said sheets or panes of celluloid, etc. may be varied from those specifically illustrated in the drawings without departing from my invention, an essential feature of which consists in constituting some part or sides or Wall of the drum ofa sheet, or paneof perforated material consisting of celluloid or other substance containing Intro-cellulose, so that the perforations therein 0 en directly and straight through the sheet ioth to the interior and exterior of the drum.

1 am aware that it has been suggested that sheets of perforated hard rubber be used to over or under lay sheets of perforated wood in the construction of the sides of the drum, but such hard rubber would thickness, possess sufiicient tensile strengt to alone serve the purpose unless fortified by its, associated wooden sheet which renders the combination open to all the objections to wood above shape and arrangements support the articles mentioned; moreover the hard rubber can not, owing to its texture and consistency, like celluloid be successfully punched, separately or simultaneously, to produce the required smooth edged perforations, which in hard rubber involve separate drilling whereby cost of production is increased, and furthermore the hard rubber being vulcanized, brings into the electrolytic solution a content of sulfur, or its compounds, which are acted upon by the ingredients of the solution so as to affect injuriously the metals electro-deposited on the articles under treatment,particularly, for instance, when silver plating is involved.

Having thus described my invention, what I claim. as new and desire to secure by Letters Iatent is the following, viz

1. In an eloctroplatin a paratus, to support the articles treateri a drum, or con tamer, comprisin wall portions composed of a sheet of celluloid, substantially as and for the purposes described.

2. In an electroplatin a paratus, to support the articles treate a rum, or container, comprising wall portions composed of a sheet of material containing nitrocellulose, substantially as and for the purposes described v 3. In an electroplatin apparatus, to support the articles treater a drum, or contamer, comprisin wall portions composed of a sheet of per orated celluloid, substantially as and for'the purposes described.

4. In an electroplating aiparatus, to support the articles treated, a rum, or container, com rising wall portions composed of a sheet 0 perforated material containing Intro-cellulose, substantially as and for the purposes described.

5. In an electroplatin support the articles treate tamer, comprising panes of celluloid, sub-- stantially as and for the purposes described.

6. In an electroplating apparatus, to treated, a drum, or con-- panes of perforated cely and for the purposes apparatus, to a tamer, comprisin luloid, substantia described.

JOHN T. DANIELS. Witnesses:

PHILIP C. PEoK, GEORGE G. MEASURES.

rum, or con- 

